:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --accent: #0ea5e9;
    --bg: #eef2f7;
    --bg-pattern: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, .06) 0%, transparent 50%),
                  radial-gradient(circle at 80% 0%, rgba(14, 165, 233, .05) 0%, transparent 45%);
    --card: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #059669;
    --warning: #d97706;
    --danger: #dc2626;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, .08);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, .1);
    --transition: .2s cubic-bezier(.4, 0, .2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    background-image: var(--bg-pattern);
    background-attachment: fixed;
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
    background: linear-gradient(135deg, #0f2744 0%, #1e40af 45%, #2563eb 100%);
    color: #fff;
    padding: 0;
    box-shadow: 0 4px 20px rgba(15, 23, 42, .18);
    position: sticky;
    top: 0;
    z-index: 200;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.site-header .container {
    max-width: 100%;
    padding: 0 16px;
}
.header-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
}
.header-brand {
    flex-shrink: 0;
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: .02em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.header-brand::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #38bdf8;
    box-shadow: 0 0 10px rgba(56, 189, 248, .8);
}
.header-nav-area {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 0;
    gap: 8px;
    justify-content: flex-end;
}
.header-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 2px;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,.35) transparent;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
}
.header-nav::-webkit-scrollbar {
    height: 4px;
}
.header-nav::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,.35);
    border-radius: 4px;
}
.header-nav a,
.header-user a {
    color: rgba(255,255,255,.88);
    text-decoration: none;
    padding: 6px 11px;
    border-radius: 999px;
    font-size: .82rem;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background var(--transition), color var(--transition), transform var(--transition);
}
.header-nav a:hover,
.header-user a:hover {
    background: rgba(255,255,255,.14);
    color: #fff;
}
.header-nav a.active,
.header-user a.active {
    background: #fff;
    color: var(--primary-dark);
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .12);
}
.header-user {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    padding-left: 10px;
    border-left: 1px solid rgba(255,255,255,.18);
}

main.container { padding-top: 28px; padding-bottom: 56px; }

/* Page head */
.page-head {
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 22px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}
.page-head::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary), var(--accent));
    border-radius: 4px 0 0 4px;
}
.page-head-home {
    background: linear-gradient(135deg, #eff6ff 0%, #fff 50%, #f0f9ff 100%);
}
.page-title {
    font-size: 1.45rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
    letter-spacing: -.02em;
}
.page-desc {
    color: var(--text-muted);
    font-size: .92rem;
    margin-bottom: 0;
    line-height: 1.55;
}
.page-desc a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}
.page-desc a:hover { text-decoration: underline; }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}
.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px 20px 18px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(226, 232, 240, .8);
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}
.stat-card::after {
    content: '';
    position: absolute;
    right: -20px;
    top: -20px;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    opacity: .12;
}
.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.stat-icon {
    width: 42px;
    height: 42px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    flex-shrink: 0;
}
.stat-card-blue .stat-icon { background: #dbeafe; }
.stat-card-green .stat-icon { background: #d1fae5; }
.stat-card-purple .stat-icon { background: #ede9fe; }
.stat-card-orange .stat-icon { background: #ffedd5; }
.stat-card-blue::after { background: #2563eb; }
.stat-card-green::after { background: #059669; }
.stat-card-purple::after { background: #7c3aed; }
.stat-card-orange::after { background: #ea580c; }
.stat-value {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -.03em;
}
.stat-card-blue .stat-value { color: #2563eb; }
.stat-card-green .stat-value { color: #059669; }
.stat-card-purple .stat-value { color: #7c3aed; }
.stat-card-orange .stat-value { color: #ea580c; }
.stat-label {
    font-size: .85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Quick nav */
.quick-nav {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 22px;
}
.quick-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 14px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    box-shadow: var(--shadow);
    transition: all var(--transition);
}
.quick-card:hover {
    border-color: #93c5fd;
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--primary-dark);
}
.quick-card-icon {
    font-size: 1.35rem;
    line-height: 1;
}
.quick-card-title {
    font-size: .88rem;
    font-weight: 600;
}
.quick-card-desc {
    font-size: .75rem;
    color: var(--text-muted);
    line-height: 1.35;
}

/* Filter bar */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    background: var(--card);
    padding: 18px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 18px;
    align-items: center;
}
.filter-bar input[type="text"],
.filter-bar select {
    padding: 9px 13px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: .9rem;
    min-width: 160px;
    flex: 1;
    background: #fafbfc;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.filter-bar input:focus,
.filter-bar select:focus {
    outline: none;
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
    background: #fff;
}
.filter-bar button {
    padding: 9px 22px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: .9rem;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(37, 99, 235, .25);
    transition: transform var(--transition), box-shadow var(--transition);
}
.filter-bar button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, .35);
}
.btn-reset {
    padding: 9px 16px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: .9rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #fff;
    transition: all var(--transition);
}
.btn-reset:hover {
    background: var(--bg);
    border-color: #cbd5e1;
    color: var(--text);
}

.result-info {
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, .7);
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* Table */
.table-wrap {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow-x: auto;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}
.data-table th {
    background: linear-gradient(180deg, #f8fafc, #f1f5f9);
    padding: 12px 14px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    color: #475569;
    font-size: .82rem;
    text-transform: none;
    letter-spacing: .01em;
}
.data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid #f1f5f9;
    vertical-align: top;
}
.data-table tbody tr {
    transition: background var(--transition);
}
.data-table tbody tr:hover { background: #f8fafc; }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table .empty {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}
.data-table code {
    background: #eff6ff;
    color: var(--primary-dark);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: .8rem;
}
.row-zero { opacity: .55; }
.row-zero td { text-decoration: line-through; text-decoration-color: #cbd5e1; }

.tag {
    display: inline-block;
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    color: var(--primary-dark);
    padding: 3px 10px;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 600;
    border: 1px solid rgba(37, 99, 235, .15);
}
.tag-axis {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    color: #15803d;
    border-color: rgba(21, 128, 61, .15);
    font-family: Consolas, "Courier New", monospace;
    white-space: nowrap;
    cursor: help;
}

.axis-legend {
    background: var(--card);
    border-radius: var(--radius);
    padding: 12px 16px;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
    font-size: .85rem;
}
.axis-legend-title {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}
.axis-legend-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    color: var(--text-muted);
}
.axis-legend-items strong {
    color: #15803d;
    font-family: Consolas, "Courier New", monospace;
}

.axis-breakdown {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}
.axis-item {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 6px;
    padding: 6px 12px;
    min-width: 72px;
}
.axis-item strong {
    color: #15803d;
    font-family: Consolas, "Courier New", monospace;
    font-size: .9rem;
}
.axis-item small {
    color: var(--text-muted);
    font-size: .75rem;
    margin-top: 2px;
    white-space: nowrap;
}

.btn-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    white-space: nowrap;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background var(--transition);
}
.btn-link:hover {
    background: var(--primary-light);
    text-decoration: none;
}

/* Pagination */
.pagination {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}
.pagination a {
    display: inline-block;
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    text-decoration: none;
    color: var(--text);
    font-size: .85rem;
    background: var(--card);
    transition: all var(--transition);
}
.pagination a:hover {
    background: var(--primary-light);
    border-color: #93c5fd;
    color: var(--primary-dark);
}
.pagination a.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(37, 99, 235, .3);
}

/* Project detail */
.breadcrumb {
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.breadcrumb a { color: var(--primary); text-decoration: none; }

.project-header {
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 18px;
}
.project-header h2 { font-size: 1.35rem; margin-bottom: 10px; font-weight: 700; }
.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: .85rem;
    color: var(--text-muted);
}
.project-meta strong { color: var(--text); }

.page-title { font-size: 1.45rem; margin-bottom: 6px; font-weight: 700; }
.page-desc { color: var(--text-muted); font-size: .92rem; margin-bottom: 0; }

.btn-back {
    display: inline-block;
    margin-top: 20px;
    color: var(--primary);
    text-decoration: none;
    font-size: .9rem;
}
.btn-back:hover { text-decoration: underline; }

/* Alerts */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    border-left: 4px solid transparent;
    font-size: .9rem;
}
.alert-error {
    background: #fef2f2;
    color: var(--danger);
    border-color: #ef4444;
    border-left-color: #ef4444;
}
.alert-success {
    background: #f0fdf4;
    color: #15803d;
    border-color: #22c55e;
    border-left-color: #22c55e;
}
.alert code {
    background: rgba(0,0,0,.06);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Manage page */
.manage-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.manage-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: box-shadow var(--transition);
}
.manage-card:hover {
    box-shadow: var(--shadow-md);
}
.manage-card h3 {
    margin-bottom: 8px;
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text);
}
.hint { font-size: .85rem; color: var(--text-muted); margin-bottom: 12px; }

.upload-zone {
    position: relative;
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s, background .2s;
    margin-bottom: 12px;
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: #eff6ff;
}
.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}
.upload-placeholder {
    color: var(--text-muted);
    font-size: .9rem;
    pointer-events: none;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.upload-icon {
    display: block;
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 8px;
}
.file-list { margin-bottom: 12px; }
.file-item {
    font-size: .85rem;
    padding: 4px 0;
    color: var(--text);
}

.btn-primary {
    padding: 9px 22px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: .9rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(37, 99, 235, .25);
    transition: transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(37, 99, 235, .35);
}
.btn-primary:disabled { opacity: .6; cursor: not-allowed; transform: none; }

.btn-danger {
    padding: 8px 20px;
    background: var(--danger);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: .9rem;
}
.btn-danger:hover { background: #b91c1c; }
.btn-danger:disabled { opacity: .6; cursor: not-allowed; }

.checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    cursor: pointer;
}
.manage-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.upload-result { margin-top: 12px; font-size: .85rem; }
.result-ok { color: #15803d; padding: 4px 0; }
.result-err { color: var(--danger); padding: 4px 0; }

.manage-table .file-name {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: .8rem;
    color: var(--text-muted);
}

/* Footer */
.site-footer {
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--border);
    padding: 18px 0;
    text-align: center;
    font-size: .8rem;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .header-bar {
        flex-wrap: wrap;
        gap: 8px;
    }
    .header-nav-area {
        width: 100%;
        justify-content: flex-start;
    }
    .header-user {
        margin-left: auto;
        border-left: none;
        padding-left: 0;
    }
    .filter-bar input[type="text"],
    .filter-bar select { min-width: 100%; }
    .project-meta { flex-direction: column; gap: 6px; }
    .manage-grid { grid-template-columns: 1fr; }
}

/* Component selection */
.select-filter {
    flex-wrap: wrap;
}
.preset-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 10px 0 2px;
}
.preset-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 12px 0 4px;
}
.preset-label {
    color: var(--text-muted);
    font-size: .85rem;
}
.preset-chip {
    display: inline-block;
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--card);
    color: var(--text);
    text-decoration: none;
    font-size: .82rem;
}
.preset-chip:hover,
.preset-chip.active {
    border-color: var(--primary);
    color: var(--primary);
    background: #eff6ff;
}
.select-table .select-primary td:first-child strong {
    color: var(--primary);
}
.select-table .select-alt td {
    color: var(--text-muted);
    background: #fafafa;
}
.select-sub {
    font-size: .78rem;
    color: var(--text-muted);
}
.select-detail {
    margin-top: 28px;
}
.select-detail h3 {
    margin: 0 0 12px;
    font-size: 1rem;
}

/* Drawings */
.drawing-filter {
    flex-wrap: wrap;
}
.view-tabs {
    display: flex;
    gap: 8px;
    margin: 16px 0 8px;
}
.view-tabs a {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    color: var(--text);
    font-size: .85rem;
    background: var(--card);
}
.view-tabs a.active,
.view-tabs a:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: #eff6ff;
}
.drawing-label code {
    font-size: .78rem;
    white-space: nowrap;
}
.drawing-upload-panel {
    background: linear-gradient(180deg, #f8fbff 0%, var(--card) 100%);
    border: 1px solid #dbeafe;
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}
.drawing-upload-head h3 {
    margin: 0 0 6px;
    font-size: 1.05rem;
}
.drawing-upload-head .hint {
    margin-bottom: 14px;
}
.drawing-file-input {
    position: absolute;
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    z-index: -1;
}
.drawing-upload-form {
    position: relative;
}
.drawing-upload-zone {
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    margin-bottom: 14px;
    border-color: #93c5fd;
    cursor: pointer;
}
.drawing-upload-zone:hover,
.drawing-upload-zone.dragover {
    border-color: #2563eb;
    background: #eff6ff;
}
.drawing-upload-zone.has-files {
    border-color: #22c55e;
    background: #f0fdf4;
}
.drawing-upload-zone .upload-placeholder strong {
    color: #1e40af;
}
.upload-icon-pdf {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
    line-height: 0;
}
.upload-icon-pdf svg {
    display: block;
    filter: drop-shadow(0 2px 4px rgba(220, 38, 38, 0.15));
}
.upload-example {
    display: inline-block;
    margin-top: 8px;
    padding: 6px 10px;
    background: #f1f5f9;
    border-radius: 6px;
    font-size: .78rem;
    color: #334155;
    max-width: 100%;
    word-break: break-all;
}
.drawing-upload-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.btn-select-file {
    display: inline-block;
    padding: 8px 18px;
    border: 1px solid var(--primary);
    border-radius: 6px;
    background: #fff;
    color: var(--primary);
    font-size: .9rem;
    cursor: pointer;
    font-weight: 500;
    user-select: none;
}
.btn-select-file:hover {
    background: #eff6ff;
}
.upload-hint-text {
    font-size: .85rem;
    color: var(--text-muted);
}
.drawing-file-list .file-item {
    padding: 8px 12px;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 6px;
}
.btn-primary.btn-ready {
    background: #16a34a;
}
.btn-primary.btn-ready:hover {
    background: #15803d;
}
.btn-primary.btn-muted {
    background: #94a3b8;
    cursor: pointer;
}
.btn-primary.btn-muted:hover {
    background: #64748b;
}
.parse-warn {
    display: block;
    color: #b45309;
    font-size: .75rem;
}
.text-muted {
    color: var(--text-muted);
}

.stats-grid-compact {
    margin-bottom: 16px;
}
.codes-table .name-cell,
.codes-table .spec-cell {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sort-link {
    color: inherit;
    text-decoration: none;
    font-weight: 600;
}
.sort-link:hover {
    color: var(--primary);
}

/* Config sheet page */
.config-sheet-form {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.config-sheet-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px 16px;
}
.config-field label {
    display: block;
    font-size: .82rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: #334155;
}
.config-field select,
.config-field input {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .88rem;
}
.config-field .hint {
    display: block;
    margin-top: 4px;
    font-size: .75rem;
}
.config-form-actions {
    display: flex;
    gap: 12px;
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.config-bind-panel {
    margin-bottom: 20px;
}
.config-bind-panel h3 {
    margin-bottom: 10px;
    font-size: 1rem;
}
.bind-rule {
    font-size: .82rem;
    color: var(--text-muted);
    word-break: break-all;
}
.config-evidence {
    max-width: 280px;
    font-size: .78rem;
}
.evidence-line {
    margin-bottom: 4px;
    line-height: 1.4;
}
.evidence-field {
    color: var(--primary);
    font-weight: 600;
}
@media (max-width: 1100px) {
    .config-sheet-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 640px) {
    .config-sheet-grid {
        grid-template-columns: 1fr;
    }
}

/* Config bind editor */
.config-bind-form {
    margin-bottom: 24px;
}
.bind-field-section {
    background: var(--card);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
    margin-bottom: 16px;
}
.bind-field-section h3 {
    margin: 0 0 12px;
    font-size: 1rem;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.bind-options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 16px;
}
.bind-option-card label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.bind-option-card textarea {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: Consolas, monospace;
    font-size: .82rem;
    resize: vertical;
}
.bind-code-preview {
    margin: 8px 0 0;
    padding: 0;
    list-style: none;
    font-size: .78rem;
    color: var(--text-muted);
}
.bind-code-preview li {
    margin-bottom: 3px;
}
.bind-code-preview .warn {
    color: #b45309;
}
.bind-note {
    display: inline-block;
    margin-left: 6px;
    color: #0369a1;
    font-style: italic;
}
.tag-muted {
    background: #f1f5f9;
    color: #64748b;
    font-weight: 500;
    margin-left: 6px;
}
.btn-secondary {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
    font-size: .9rem;
}
.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}
@media (max-width: 900px) {
    .bind-options-grid {
        grid-template-columns: 1fr;
    }
}

/* Electrical sizing page */
.sizing-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 20px;
    margin-bottom: 24px;
    align-items: start;
}
.sizing-form-card,
.sizing-result-card,
.sizing-ref-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.sizing-form-card h3,
.sizing-result-card h3 {
    margin: 0 0 14px;
    font-size: 1rem;
}
.sizing-mode-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.sizing-mode-tabs label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .9rem;
    cursor: pointer;
}
.sizing-field {
    margin-bottom: 14px;
}
.sizing-field label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.sizing-field input,
.sizing-field select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .9rem;
}
.sizing-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.sizing-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
}
.sizing-metric {
    flex: 1 1 120px;
    background: #eff6ff;
    border: 1px solid #dbeafe;
    border-radius: 8px;
    padding: 12px 14px;
}
.sizing-metric .label {
    display: block;
    font-size: .78rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}
.sizing-metric strong {
    font-size: 1.25rem;
    color: #1e40af;
}
.sizing-metric small {
    display: block;
    font-size: .75rem;
    color: var(--text-muted);
    margin-top: 2px;
}
.sizing-rec-block {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}
.sizing-rec-block h4 {
    margin: 0 0 8px;
    font-size: .92rem;
    color: #1e3a5f;
}
.sizing-rec-table {
    width: 100%;
    font-size: .88rem;
    border-collapse: collapse;
}
.sizing-rec-table th {
    text-align: left;
    width: 110px;
    padding: 6px 8px 6px 0;
    color: var(--text-muted);
    font-weight: 500;
    vertical-align: top;
}
.sizing-rec-table td {
    padding: 6px 0;
}
.sizing-empty {
    color: var(--text-muted);
    font-size: .9rem;
    padding: 40px 10px;
    text-align: center;
}
.sizing-bom-refs {
    margin-bottom: 24px;
}
.sizing-bom-refs h3 {
    margin-bottom: 12px;
    font-size: 1.05rem;
}
.sizing-ref-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.compact-table th,
.compact-table td {
    font-size: .85rem;
    padding: 8px 10px;
}
@media (max-width: 960px) {
    .sizing-layout,
    .sizing-ref-grid {
        grid-template-columns: 1fr;
    }
}

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f2744 0%, #1e40af 40%, #2563eb 70%, #0ea5e9 100%);
    position: relative;
    overflow: hidden;
}
.login-page::before,
.login-page::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: .35;
}
.login-page::before {
    width: 400px;
    height: 400px;
    background: #38bdf8;
    top: -100px;
    right: -80px;
}
.login-page::after {
    width: 300px;
    height: 300px;
    background: #818cf8;
    bottom: -80px;
    left: -60px;
}
.login-wrap {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    position: relative;
    z-index: 1;
}
.login-card {
    background: rgba(255, 255, 255, .97);
    border-radius: 16px;
    padding: 36px 32px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .25);
    border: 1px solid rgba(255, 255, 255, .5);
    backdrop-filter: blur(12px);
}
.login-brand {
    text-align: center;
    margin-bottom: 28px;
}
.login-brand::before {
    content: '⚡';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin: 0 auto 14px;
    background: linear-gradient(135deg, #dbeafe, #eff6ff);
    border-radius: 16px;
    font-size: 1.6rem;
    border: 1px solid rgba(37, 99, 235, .15);
}
.login-brand h1 {
    font-size: 1.55rem;
    color: #0f2744;
    margin-bottom: 6px;
    font-weight: 800;
}
.login-brand p {
    font-size: .88rem;
    color: var(--text-muted);
}
.login-form .login-field {
    margin-bottom: 18px;
}
.login-form label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 7px;
    color: #475569;
}
.login-form input {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: .95rem;
    background: #fafbfc;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
    background: #fff;
}
.login-btn {
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    font-size: 1rem;
    border-radius: 10px;
}
.login-footer {
    text-align: center;
    color: rgba(255, 255, 255, .8);
    font-size: .82rem;
    margin-top: 18px;
}
.nav-user {
    color: rgba(255, 255, 255, .75);
    font-size: .78rem;
    padding: 0 4px;
    max-width: 72px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.nav-logout {
    color: rgba(255, 255, 255, .9) !important;
    background: rgba(255, 255, 255, .12);
}
.nav-logout:hover {
    background: rgba(255, 255, 255, .22) !important;
}

/* Users management */
.users-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}
.users-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}
.users-card h3 {
    margin: 0 0 14px;
    font-size: 1rem;
}
.users-form .users-field {
    margin-bottom: 14px;
}
.users-form label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.users-form input[type="text"],
.users-form input[type="password"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .9rem;
}
.users-form input:disabled {
    background: #f8fafc;
    color: var(--text-muted);
}
.users-list-section {
    margin-bottom: 24px;
}
.users-list-section h3 {
    margin-bottom: 12px;
}
.users-table .users-actions {
    white-space: nowrap;
}
.users-table .inline-form {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-right: 8px;
}
.users-table .input-sm {
    width: 100px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: .82rem;
}
.row-disabled {
    opacity: .55;
}
.nav-account {
    font-size: .85rem !important;
}
@media (max-width: 860px) {
    .users-layout {
        grid-template-columns: 1fr;
    }
}

/* Database backup page */
.backup-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.backup-grid {
    margin-bottom: 20px;
}
.backup-restore-card .backup-label {
    display: block;
    margin: 10px 0 6px;
    font-size: .85rem;
    font-weight: 600;
}
.backup-restore-card input[type="file"],
.backup-restore-card input[type="text"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
}
.warn-text {
    color: #b45309;
}
.backup-list-card h3 {
    margin-bottom: 12px;
}
.backup-actions {
    white-space: nowrap;
}
.btn-danger-text {
    color: #dc2626 !important;
}
.backup-modal {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, .45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}
.backup-modal[hidden] {
    display: none;
}
.backup-modal-box {
    background: #fff;
    border-radius: var(--radius);
    padding: 22px 24px;
    width: min(420px, 100%);
    box-shadow: var(--shadow);
}
.backup-modal-box h3 {
    margin: 0 0 10px;
}
.backup-modal-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
}
@media (max-width: 720px) {
    .backup-stats {
        grid-template-columns: 1fr;
    }
}